Re: [PATCH 14/14] bsd-user/signal: Create a dummy signal queueing function

[Richard Henderson]

On 9/24/21 4:11 PM, Warner Losh wrote:
> It brings to mind something else... There's times it might be easier
> to refactor between bsd-user and linux-user rather than upstream
> something that's largely copied from linux-user. Is there a good
> way to do that and talk about the design before I sink a ton of time
> into something that's the wrong direction?

I certainly wouldn't mind a top-level user-only/ or posix-only/ in which we could share 
code between {linux,bsd}-user/, but I don't have a good idea of what that would look like.

Already you have code for MAP_EXCL that doesn't exist for linux (though there is a new, 
related, MAP_FIXED_NOREPLACE, which linux-user/ does not yet support).  So even with 
"obvious" routines I'm not sure how much real sharing we can get away with.

All I can say is: patches welcome, and we'll bike-shed them as they come.


r~